/*
 * Copyright (C) 2019 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.internal.platform.android

import okhttp3.DelegatingSSLSocket
import okhttp3.DelegatingSSLSocketFactory
import okhttp3.Protocol.HTTP_1_1
import okhttp3.Protocol.HTTP_2
import okhttp3.testing.PlatformRule
import org.conscrypt.Conscrypt
import org.junit.Assert.assertFalse
import org.junit.Assert.assertNotNull
import org.junit.Assert.assertNull
import org.junit.Assert.assertTrue
import org.junit.Assume.assumeFalse
import org.junit.Assume.assumeTrue
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.runners.Parameterized
import java.security.Provider
import javax.net.ssl.SSLContext
import javax.net.ssl.SSLSocket

@RunWith(Parameterized::class)
class AndroidSocketAdapterTest(private val adapter: SocketAdapter) {
  @Suppress("RedundantVisibilityModifier")
  @JvmField
  @Rule
  public val platform = PlatformRule.conscrypt()

  val context by lazy {
    val provider: Provider = Conscrypt.newProviderBuilder().provideTrustManager(true).build()

    SSLContext.getInstance("TLS", provider).apply {
      init(null, null, null)
    }
  }

  @Test
  fun testMatchesSupportedSocket() {
    val socketFactory = context.socketFactory

    val sslSocket = socketFactory.createSocket() as SSLSocket
    assertTrue(adapter.matchesSocket(sslSocket))

    adapter.configureTlsExtensions(sslSocket, listOf(HTTP_2, HTTP_1_1))
    // not connected
    assertNull(adapter.getSelectedProtocol(sslSocket))
  }

  @Test
  fun testMatchesSupportedAndroidSocketFactory() {
    assumeTrue(adapter is StandardAndroidSocketAdapter)

    assertTrue(adapter.matchesSocketFactory(context.socketFactory))
    assertNotNull(adapter.trustManager(context.socketFactory))
  }

  @Test
  fun testDoesntMatchSupportedCustomSocketFactory() {
    assumeFalse(adapter is StandardAndroidSocketAdapter)

    assertFalse(adapter.matchesSocketFactory(context.socketFactory))
    assertNull(adapter.trustManager(context.socketFactory))
  }

  @Test
  fun testCustomSocket() {
    val socketFactory = DelegatingSSLSocketFactory(context.socketFactory)

    assertFalse(adapter.matchesSocketFactory(socketFactory))

    val sslSocket =
        object : DelegatingSSLSocket(context.socketFactory.createSocket() as SSLSocket) {}
    assertFalse(adapter.matchesSocket(sslSocket))

    adapter.configureTlsExtensions(sslSocket, listOf(HTTP_2, HTTP_1_1))
    // not connected
    assertNull(adapter.getSelectedProtocol(sslSocket))
  }

  companion object {
    @JvmStatic
    @Parameterized.Parameters(name = "{0}")
    fun data(): Collection<SocketAdapter> {
      return listOfNotNull(
          ConscryptSocketAdapter.buildIfSupported(),
          DeferredSocketAdapter("org.conscrypt"),
          AndroidSocketAdapter.buildIfSupported("org.conscrypt"),
          StandardAndroidSocketAdapter.buildIfSupported("org.conscrypt")
      )
    }
  }
}
